The Research Of New Building Integrated Heating Device

This topic from the subject in the school to bear the "12th Five-YearNational Science and Technology Support Project" cold district heating systemenergy saving key technology research and engineering demonstration, sub-topics of the subject "new indoor heating technology research" Related content.At present, building integration has become the development trend ofintegration, such as solar photovoltaic, cold beam technology. The integratedterminal device is a new heating construction using heat pipe principle, toprovide heat to the interior, and can take into account the cooling. Reduce theequipment needs lower water temperature, low temperature heat source can beused effectively.New heating and building integrated terminal device has beenstudied. Introduce the heat pipe principle. Calculated thickness and coverthickness in the case of different materials.Establish the mathematical model of the equipment in the heating process.By Darcy formula suitable for applications in civil construction, we haveequipment heat limit. Theoretical research, new heating and building integratedheat flux limit of the terminal device and equipment is the fullness of thesuperconducting fluid, the inclination of equipment, the superconducting fluidnature, and its working temperature. The heat dissipation of the device in the caseof different diameters and inclination, is full of equipment heat dissipation,consider the relationship between the operation and efficiency of RecommendedDN20equipment, fluid-filled angle of60°-70°, this different spacing limit to theindoor heat dissipation is141W/m2-983W/m2., diameter the DN25devicerecommended liquid filled angle of50°-60°. Different spacing limit to the indoorheat dissipation is216W/m2-1838W/m2. Calculate equipment downward heat,due to the the the existence of of the thermal insulation layer, the heat dissipationat the equipment downward is the amount of16W/m2-40W/m2.New heating the end of the building integrated device for indoor heatingconditions were simulated. On the radiator with new heating and buildingintegrated terminal device, and pointed out the respective advantages anddisadvantages. Discussed the feasibility of equipment cooling, equipment cooling can notadopt the principle of the phase transition, so we have to use other methods tocalculate the cooling capacity. Thermal resistance method equipment coolingcapacity, and to verify the feasibility of this approach. Both practicality andaccuracy can be very good in practice. By theoretical calculations, equipmentcooling capacity of the different tube spacing is18w/m2-50w/m2.